diff --git a/src/Microsoft.AspNet.Routing/project.json b/src/Microsoft.AspNet.Routing/project.json
index a628658383..9aae63633b 100644
--- a/src/Microsoft.AspNet.Routing/project.json
+++ b/src/Microsoft.AspNet.Routing/project.json
@@ -8,7 +8,7 @@
     "Microsoft.AspNet.Http.Extensions": "1.0.0-*",
     "Microsoft.Framework.Logging.Abstractions": "1.0.0-*",
     "Microsoft.Framework.OptionsModel": "1.0.0-*",
-    "Microsoft.Framework.NotNullAttribute.Internal": { "type": "build", "version": "1.0.0-*" }
+    "Microsoft.Framework.NotNullAttribute.Sources": { "type": "build", "version": "1.0.0-*" }
   },
   "frameworks": {
     "dnx451": {},